Two Bars,A and B,each of Length 2

question 34

Multiple Choice

Two bars,A and B,each of length 2.0 m and cross sectional area 1.0 m²,are placed end to end as shown in the figure.
The thermal conductivities of the bars are
k_A = 439 J/(s × m × K) and k_B = 887 J/(s × m × K) ,respectively.The left end of bar A is maintained at 373 K while the right end of B is maintained at 273 K.
-How much heat passes the interface between A and B in 6.0 s?

• A)6.0 × 10⁴ J
• B)1.5 × 10³ J
• C)1.2 × 10⁵ J
• D)8.8 × 10⁴ J
• E)3.0 × 10⁴ J

Understand how to calculate and compare the interest earned on different investment vehicles over specified periods.

Analyze and construct loan repayment schedules incorporating principal and interest components.

Calculate and analysis investment returns over different periods, including investments in T-bills and commercial paper.

Understand the financial implications of premature settlement proposals on promissory notes and investments.

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